What is the physical examination of stool? The physical stool examination mainly includes general stool examination, fecal occult blood test and microscopic examination: 1) general stool examination includes stool volume, character, color, odor, parasites and stones; 2) fecal occult blood test depends on whether there is bleeding in the stool; 3) fecal microscopic examination includes cells and food residues, crystals, bacteria, parasites and eggs and so on. In the process of examination, microscopic examination of stool is the most direct and reliable method to diagnose intestinal pathogens infection, which can clearly diagnose the corresponding parasites and parasitic infections. In addition, it is of great value in the diagnosis of gastrointestinal tumors.